TY  - BOOK
ED  - American Petroleum Institute, API
TI  - The API well number and standard state and county numeric codes including offshore waters: API bulletin D12A (BUL D12A)
U1  - Caja archivo 8 
PY  - 1979///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
ER  -